Mobile Search –there is a great opportunity for advertisers to get traction on mobile search engine listings as many brands haven’t jumped on board yet.
The driver should use the engine to advance the traction resistance to reduce the speed, slow progress, and try to avoid the pursuit of the steering and brakes.
驾驶员应提前利用发动机牵引阻力作用来降低车速、缓慢前进，并尽量避免猛打方向和急刹车。
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Here's one of the beautiful, stylized wheels on the Case tractionengine.